What are they censoring? All transactions? They can only do self-harm in this manner because they must expend large amounts of electricity, perpetually, in order to keep up their censorship, and they don't know what they're censoring. This is assuming that they do indeed have the ability to 51% attack Bitcoin, and that the rest of the world is unable to use the nuclear option of changing their software clients to bypass the 51% attack. (Mining is not the ultimate arbiter of the correct chain - individuals are the ultimate arbiter via their choice of software client). A nuclear option would make all of their hardware immediately useless and eliminate any influence over Bitcoin they may have.
> And various governments can and have seized bitcoin. This is a fairy tale.
They can seize Bitcoin if you leave your private keys on an unencrypted machine, or if you leave your 12 word written phrase lying around at home.
They can't seize your seed phrase or passphrase from your head, which can deterministically generate your bitcoin wallet on any machine. They can't seize it from an encrypted disk either, unless you reveal to them the keys to decrypt it.
In the UK they may be able to force you to hand over keys for decryption or threaten you with 2 years of jail time. Not in the USA.
The point was that, Bitcoin can be made unseizable because it is merely information. This is very unlike dollars, gold, or other physical commodities which can be seized by force, or threat of force, which has been done before - EO 6102. An attempt to try and emulate EO 6102 for Bitcoin would result in a very different outcome.
